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7050 Aluminum vs. 6065 Aluminum

Both 7050 aluminum and 6065 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is 7050 aluminum and the bottom bar is 6065 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
68
Elongation at Break, % 2.2 to 12
4.5 to 11
Fatigue Strength, MPa 130 to 210
96 to 110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 280 to 330
190 to 230
Tensile Strength: Ultimate (UTS), MPa 490 to 570
310 to 400
Tensile Strength: Yield (Proof), MPa 390 to 500
270 to 380

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 490
590
Specific Heat Capacity, J/kg-K 860
890
Thermal Conductivity, W/m-K 140
170
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
43
Electrical Conductivity: Equal Weight (Specific), % IACS 100
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 3.1
2.8
Embodied Carbon, kg CO2/kg material 8.2
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1120
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 55
17 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 1110 to 1760
540 to 1040
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
49
Strength to Weight: Axial, points 45 to 51
31 to 40
Strength to Weight: Bending, points 45 to 50
36 to 43
Thermal Diffusivity, mm2/s 54
67
Thermal Shock Resistance, points 21 to 25
14 to 18

Alloy Composition

Aluminum (Al), % 87.3 to 92.1
94.4 to 98.2
Bismuth (Bi), % 0
0.5 to 1.5
Chromium (Cr), % 0 to 0.040
0 to 0.15
Copper (Cu), % 2.0 to 2.6
0.15 to 0.4
Iron (Fe), % 0 to 0.15
0 to 0.7
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 1.9 to 2.6
0.8 to 1.2
Manganese (Mn), % 0 to 0.1
0 to 0.15
Silicon (Si), % 0 to 0.12
0.4 to 0.8
Titanium (Ti), % 0 to 0.060
0 to 0.1
Zinc (Zn), % 5.7 to 6.7
0 to 0.25
Zirconium (Zr), % 0.080 to 0.15
0 to 0.15
Residuals, % 0
0 to 0.15